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for and ignore ERRmoredata errors as the client library doesn't support
32-bit error messages.
Added some annotations for the RPC pipe code to make it a bit clearer
maybe.
on different pipes. This seriously confuses NT. Unfortunately HEAD
branch is limited to one rpc pipe per connection as the fnum is stored
inside the cli_state structure. It should really be broken out into
it's own structure so multiple pipes can be opened on one TCP/IP socket.
What a good idea! But look over here! I've already done it in another
workarea but it will require a day or two to refactor some of the internal
samba rpc client stuff (i.e netlogon requests) so it will remain uncommitted
for another while.
We were reading the endainness in the RPC header and then never propagating
it to the internal parse_structs used to parse the data.
Also removed the "align" argument to prs_init as it was *always* set to
4, and if needed can be set differently on a case by case basis.
Now ready for AS/U testing when Herb gets it set up :-).
Jeremy.
in the RPC code. This change was prompted by trying to save a long (>256)
character comment in the printer properties page.
The new system associates a TALLOC_CTX with the pipe struct, and frees
the pool on return of a complete PDU.
A global TALLOC_CTX is used for the odd buffer allocated in the BUFFERxx
code, and is freed in the main loop.
This code works with insure, and seems to be free of memory leaks and
crashes (so far) but there are probably the occasional problem with
code that uses UNISTRxx structs on the stack and expects them to contain
storage without doing a init_unistrXX().
This means that rpcclient will probably be horribly broken.
A TALLOC_CTX also needed associating with the struct cli_state also,
to make the prs_xx code there work.
The main interface change is the addition of a TALLOC_CTX to the
prs_init calls - used for dynamic allocation in the prs_XXX calls.
Now this is in place it should make dynamic allocation of all RPC
memory on unmarshall *much* easier to fix.
Jeremy.
* fixes some readline bugs from the merge
* first attempt at commands (spoolenum almost works)
* no changes to existing functions in HEAD; only additions
of new functions. I'll weed out what I can as I go.
--jerry
pdus, and then feeds them over either a "local" function call or a "remote"
function call to an msrpc service. the "remote" msrpc daemon, on the
other side of a unix socket, then calls the same "local" function that
smbd would, if the msrpc service were being run from inside smbd.
this allows a transition from local msrpc services (inside the same smbd
process) to remote (over a unix socket).
removed reference to pipes_struct in msrpc services. all msrpc processing
functions take rpcsrv_struct which is a structure containing state info
for the msrpc functions to decode and create pdus.
created become_vuser() which does everything not related to connection_struct
that become_user() does.
removed, as best i could, connection_struct dependencies from the nt spoolss
printing code.
todo: remove dcinfo from rpcsrv_struct because this stores NETLOGON-specific
info on a per-connection basis, and if the connection dies then so does
the info, and that's a fairly serious problem.
had to put pretty much everything that is in user_struct into parse_creds.c
to feed unix user info over to the msrpc daemons. why? because it's
expensive to do unix password/group database lookups, and it's definitely
expensive to do nt user profile lookups, not to mention pretty difficult
and if you did either of these it would introduce a complication /
unnecessary interdependency. so, send uid/gid/num_groups/gid_t* +
SID+num_rids+domain_group_rids* + unix username + nt username + nt domain
+ user session key etc. this is the MINIMUM info identified so far that's
actually implemented. missing bits include the called and calling
netbios names etc. (basically, anything that can be loaded into
standard_sub() and standard_sub_basic()...)
if microsoft bothered to publish it. actually, there are good reasons
for not publishing it: people might write programs for it, and then
those programs wouldn't work on nt5, for example...
verified that lsaquery, lsalookupsids work, and found some bugs in the
parameters of these commands :-)
soo... we now have an lsa_* api that has the same arguments as the nt
Lsa* api! cool!
the only significant coding difference is the introduction of a
user_credentials structure, containing user, domain, pass and ntlmssp
flags.
msrpc client code. the intent is to hide / abstract / associate
connection info behind policy handles.
this makes the msrpc functions look more and more like their nt equivalents.
who-hou!
have we got. and what data do we have. hmm.. i wonder what the NTLMv2
user session key can be... hmmm... weell.... there's some hidden data
here, generated from the user password that doesn't go over-the-wire,
so that's _got_ to be involved. and... that bit of data took a lot of
computation to produce, so it's probably _also_ involved... and md4 no, md5?
no, how about hmac_md5 yes let's try that one (the other's didn't work)
oh goodie, it worked!
i love it when this sort of thing happens. took all of fifteen minutes to
guess it. tried concatenating client and server challenges. tried
concatenating _random_ bits of client and server challenges. tried
md5 of the above. tried hmac_md5 of the above. eventually, it boils down
to this:
kr = MD4(NT#,username,domainname)
hmacntchal=hmac_md5(kr, nt server challenge)
sess_key = hmac_md5(kr, hmacntchal);
samr_lookup_rids() moved to a dynamic memory structure not a
static one limited to 32 RIDs. cli_pipe.c reading wasn't checking
ERRmoredata when DOS error codes negotiated (this terminates
MSRPC code with prejudice).
a problem i was having.
- added rudimentary CAP_STATUS32 support for same reason.
- added hard-coded, copy-the-same-data-from-over-the-wire version of
CAP_EXTENDED_SECURITY, which is a security-blob to encapsulate
GSSAPI which encodes
SPNEGO which is used to negotiate
Kerberos or NTLMSSP. i have implemented
NTLMSSP which negotiates
NTLMv1 or NTLMv2 and 40-bit or 128-bit etc. i have implemented
NTLMv1 / 40-bit.
*whew*.
Added synchronise_passdb function to update accounts in a BDC's smbpasswd.
Improved rpc_read, which was still somewhat broken for multiple PDU's.
modify_trust_password must initialise cli.pwd (pwd_set_nullpwd).
LsaLookupSids etc from within SamrQueryAliasMembers, for example.
fnum is now a parameter to client functions. thanks to mike black
for starting the ball rolling.
the pre-alpha "domain group" etc parameters have disappeared.
- interactive debug detection
- re-added mem_man (andrew's memory management, detects memory corruption)
- american spellings of "initialise" replaced with english spelling of
"initialise".
- started on "lookup_name()" and "lookup_sid()" functions. proper ones.
- moved lots of functions around. created some modules of commonly used
code. e.g the password file locking code, which is used in groupfile.c
and aliasfile.c and smbpass.c
- moved RID_TYPE_MASK up another bit. this is really unfortunate, but
there is no other "fast" way to identify users from groups from aliases.
i do not believe that this code saves us anything (the multipliers)
and puts us at a disadvantage (reduces the useable rid space).
the designers of NT aren't silly: if they can get away with a user-
interface-speed LsaLookupNames / LsaLookupSids, then so can we. i
spoke with isaac at the cifs conference, the only time for example that
they do a security context check is on file create. certainly not on
individual file reads / writes, which would drastically hit their
performance and ours, too.
- renamed myworkgroup to global_sam_name, amongst other things, when used
in the rpc code. there is also a global_member_name, as we are always
responsible for a SAM database, the scope of which is limited by the role
of the machine (e.g if a member of a workgroup, your SAM is for _local_
logins only, and its name is the name of your server. you even still
have a SID. see LsaQueryInfoPolicy, levels 3 and 5).
- updated functionality of groupname.c to be able to cope with names
like DOMAIN\group and SERVER\alias. used this code to be able to
do aliases as well as groups. this code may actually be better
off being used in username mapping, too.
- created a connect to serverlist function in clientgen.c and used it
in password.c
- initialisation in server.c depends on the role of the server. well,
it does now.
- rpctorture. smbtorture. EXERCISE EXTREME CAUTION.
changes from yesterday by me, jeremy and andrew.
jeremy, your ACB_PWNOTREQ mod would have caused a crash if the user
didn't exist (first check should be for smb_pass != NULL)
rpc_client/cli_pipe.c: Inlined code removed from smbdes.c
rpc_server/srv_samr.c: Fixed unused variable warning.
rpc_server/srv_util.c: Inlined code removed from smbdes.c
Luke - the above changes are the first part of the changes
you and I discussed as being neccessary at the CIFS conference.
*PLEASE REVIEW THESE CHANGES* - make sure I haven't broken
any of the authenticated DCE/RPC code.
smbd/nttrans.c: Fixed to allow NT5.0beta2 to use Samba shares
with NT SMB support.
smbd/open.c: Fixed mkdir when called from nttrans calls.
smbd/server.c: Set correct size for strcpy of global_myworkgroup.
Jeremy.
smbd/chgpasswd.c: Fixed (my) stupid bug where I was returning stack based variables. Doh !
smbd/trans2.c: Allows SETFILEINFO as well as QFILEINFO on directory handles.
Jeremy.
put unicode strings after SAMLOGON query regardless of whether it's
an NT mailslot or a non-NT mailslot, after having observed this behaviour
out of NT machines.
smb.tgz file from my portable.
particularly the call to mem_data followed by a realloc of that data in
cli_pipe.c's rpc_read() function.
smbd responses now use p->rdata_i which is a faked-up pointer into
p->rdata's response data. rdata can be very long; rdata_i is limited
to point to no more than max_tsize - 0x18 in length. this will make
it an almost trivial task to add the encrypted rpc headers after
rdata_i, and mem_buf_copy will cope admirably with rhdr chained to
rdata_i chained to auth_verifier etc etc...
- removed debug info in struni2 and unistr2 (security risk)
- rpc_pipe function was getting pointer to data then calling realloc *dur*
- password check function, the start of "credential checking",
user, wks, domain, pass as the credentials (not just user,pass which
is incorrect in a domain context)
- cli_write needs to return ssize_t not size_t, because total can be -1
if the write fails.
- fixed signed / unsigned warnings (how come i don't get those any more
when i compile with gcc???)
- nt password change added in smbd. yes, jeremy, i verified that the
SMBtrans2 version still works.
